Transesterification of Triolein and Methanol by Novozym 435 with Dimethyl Ether

Abstract

The present study evaluates the lipase (Novozym 435)-catalyzed transesteri cation of triolein and methanol mixtures to generate fatty acid methyl esters (FAMEs) using dimethyl ether (DME) in a batch reactor and a continuous pipe reactor. The addition of DME facilitated the preparation of homogeneous mixtures of triolein and methanol. The e ect of the Novozym 435 and DME contents in the feed mixtures on the time-course of FAME production was analyzed. With increasing contents of Novozym 435 and DME in the feed mixtures, the FAME concentration increased more rapidly in the batch reactor than in the continuous reactor. The feed ow rate and DME content were varied, and the FAME concentration at the outlet of the pipe reactor was measured with variation of the residence time and DME content. Increasing the DME content in the feed mixtures and the residence time led to a more rapid increase in the FAME concentration for the batch reactor than that in the continuous pipe reactor.

Novozym 435: the “perfect” lipase immobilized biocatalyst?

“…455 Triolein was also methanolyzed by N435 using dimethyl ether (DME) as the reaction medium in a batch reactor and a continuous pipe reactor. 456 In another example, oil obtained from the seeds of Manilkara zapota (L.) was transesterified with methanol, comparing different lipases as biocatalysts, with the best results achieved using N435. 457 Novozym-435 gave 96% biodiesel yield after 12 h, but the activity decreased progressively (after 6 cycles, the yield was only 72%).…”

Análise Paramétrica de Processo da Produção do Biodiesel a partir do Etanol por Simulação Computacional

“…Onde C é a concentração de éster metílico/etílico produzido e t é o tempo de reação (PIZARRO e PARK, 2003;MAEDA et al, 2017).…”